Measuring the value of strategic alliances in the wake of a financial implosion: Evidence from Japan's financial services sector

We find that a strategic alliance, on average, increases the value of the partner firms. Second, the gains from the alliance are spread more widely among the partners than would be suggested by a random alternative. Third, smaller partners tend to experience larger percentage gains. Fourth, the market values inter-group alliance announcements more than intra-group alliance announcements. Fifth, we do not find a significant difference in the abnormal returns shown by domestic-foreign alliances and domestic-domestic alliances.